A taboo's a strong social prohibition (or ban) relating to any area of human activity or social custom declared as sacred and forbidden; breaking of the taboo's usually considered objectionable or abhorrent by society. The term was borrowed from the Tongan language and appears in many Polynesian cultures. In those cultures, a tabu (or tapu or kapu) often has specific religious associations. It was a word brought back by Captain James Cook in 1777 after a long sea voyage to the South Seas and in… (More on Taboo)